CPC Main Group Additional Only
F02G 2270/00 Constructional features
18 direct subcodes
Child Classifications
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- F02G 2270/005 Shells, e.g. a sealed or sealing shell for a Stirling engine
- F02G 2270/02 Pistons for reciprocating and rotating
- F02G 2270/04 Roller assemblies connecting opposed pistons
- F02G 2270/10 Rotary pistons
- F02G 2270/15 Rotating cylinders
- F02G 2270/20 Plural piston swash plates
- F02G 2270/30 Displacer assemblies
- F02G 2270/40 Piston assemblies
- F02G 2270/42 Displacer drives
- F02G 2270/45 Piston rods
- F02G 2270/50 Crosshead guiding pistons
- F02G 2270/55 Cylinders
- F02G 2270/60 Counterweights for pistons
- F02G 2270/70 Liquid pistons
- F02G 2270/80 Engines without crankshafts
- F02G 2270/85 Crankshafts
- F02G 2270/90 Valves
- F02G 2270/95 Pressurised crankcases
Top Applicants
Top 10 applicants by patent filingsfor class F02, 2013–2023, worldwide · Source: EPO PATSTAT
- ROBERT BOSCH DE 8,801
- FORD GLOBAL TECHNOLOGIES US 8,171
- GE (GENERAL ELECTRIC COMPANY) US 6,957
- HYUNDAI MOTOR COMPANY KR 5,390
- UNITED TECHNOLOGIES CORPORATION (UTC) US 5,250
- TOYOTA MOTOR CORPORATION JP 5,214
- TOYOTA MOTOR CORPORATION 4,149
- DENSO CORPORATION JP 3,400
- KIA MOTORS CORPORATION KR 3,388
- SAFRAN AIRCRAFT ENGINES FR 3,332